131 lines
4.8 KiB
C++
131 lines
4.8 KiB
C++
//
|
|
// Copyright (c) 2019 Rokas Kupstys.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
//
|
|
//
|
|
#pragma once
|
|
|
|
#include "ImNodes.h"
|
|
|
|
//
|
|
// Appearance can be styled mid-frame by ImNodes::Ez::PushStyleVar()/ImNodes::Ez::PopStyleVar().
|
|
//
|
|
// Defined outside the ImNodes namespace similar to enums in ImGui.
|
|
//
|
|
enum ImNodesStyleVar
|
|
{
|
|
ImNodesStyleVar_GridSpacing, // float
|
|
ImNodesStyleVar_CurveThickness, // float
|
|
ImNodesStyleVar_CurveStrength, // float
|
|
ImNodesStyleVar_SlotRadius, // float
|
|
ImNodesStyleVar_NodeRounding, // float
|
|
ImNodesStyleVar_NodeSpacing, // ImVec2
|
|
ImNodesStyleVar_ItemSpacing, // ImVec2
|
|
ImNodesStyleVar_COUNT,
|
|
};
|
|
|
|
enum ImNodesStyleCol
|
|
{
|
|
ImNodesStyleCol_GridLines,
|
|
ImNodesStyleCol_NodeBodyBg,
|
|
ImNodesStyleCol_NodeBodyBgHovered,
|
|
ImNodesStyleCol_NodeBodyBgActive,
|
|
ImNodesStyleCol_NodeBorder,
|
|
ImNodesStyleCol_Connection,
|
|
ImNodesStyleCol_ConnectionActive,
|
|
ImNodesStyleCol_SelectBg,
|
|
ImNodesStyleCol_SelectBorder,
|
|
ImNodesStyleCol_NodeTitleBarBg,
|
|
ImNodesStyleCol_NodeTitleBarBgHovered,
|
|
ImNodesStyleCol_NodeTitleBarBgActive,
|
|
ImNodesStyleCol_COUNT,
|
|
};
|
|
|
|
namespace ImNodes
|
|
{
|
|
|
|
/// This namespace includes functions for easily creating nodes. They implement a somewhat nice node layout. If you need
|
|
/// a quick solution - use easy nodes. If you want to customize node look - use lower level node functions from ImNodes.h
|
|
namespace Ez
|
|
{
|
|
|
|
struct SlotInfo
|
|
{
|
|
/// Slot title, will be displayed on the node.
|
|
const char* title;
|
|
/// Slot kind, will be used for matching connections to slots of same kind.
|
|
int kind;
|
|
};
|
|
|
|
// Style which holds the extended variables and colors not already stored in ImNodes::CanvasState.
|
|
struct StyleVars
|
|
{
|
|
float SlotRadius = 5.0f;
|
|
ImVec2 ItemSpacing{8.0f, 4.0f};
|
|
struct
|
|
{
|
|
ImVec4 NodeBodyBg{0.12f, 0.12f, 0.12f, 1.0f};
|
|
ImVec4 NodeBodyBgHovered{0.16f, 0.16f, 0.16f, 1.0f};
|
|
ImVec4 NodeBodyBgActive{0.25f, 0.25f, 0.25f, 1.0f};
|
|
ImVec4 NodeBorder{0.4f, 0.4f, 0.4f, 1.0f};
|
|
ImVec4 NodeTitleBarBg{0.22f, 0.22f, 0.22f, 1.0f};
|
|
ImVec4 NodeTitleBarBgHovered{0.32f, 0.32f, 0.32f, 1.0f};
|
|
ImVec4 NodeTitleBarBgActive{0.5f, 0.5f, 0.5f, 1.0f};
|
|
} Colors;
|
|
};
|
|
|
|
struct Context;
|
|
|
|
IMGUI_API Context* CreateContext();
|
|
IMGUI_API void FreeContext(Context *ctx);
|
|
IMGUI_API void SetContext(Context *ctx);
|
|
|
|
IMGUI_API ImNodes::CanvasState& GetState();
|
|
|
|
IMGUI_API void BeginCanvas();
|
|
IMGUI_API void EndCanvas();
|
|
|
|
/// Begin rendering of node in a graph. Render node content when returns `true`.
|
|
IMGUI_API bool BeginNode(void* node_id, const char* title, ImVec2* pos, bool* selected);
|
|
/// Terminates current node. Should be called regardless of BeginNode() returns value.
|
|
IMGUI_API void EndNode();
|
|
/// Renders input slot region. Kind is unique value whose sign is ignored.
|
|
/// This function must always be called after BeginNode() and before OutputSlots().
|
|
/// When no input slots are rendered call InputSlots(nullptr, 0);
|
|
IMGUI_API void InputSlots(const SlotInfo* slots, int snum);
|
|
/// Renders output slot region. Kind is unique value whose sign is ignored. This function must always be called after InputSlots() and function call is required (not optional).
|
|
/// This function must always be called after InputSlots() and before EndNode().
|
|
/// When no input slots are rendered call OutputSlots(nullptr, 0);
|
|
IMGUI_API void OutputSlots(const SlotInfo* slots, int snum);
|
|
|
|
bool Connection(void* input_node, const char* input_slot, void* output_node, const char* output_slot);
|
|
|
|
IMGUI_API void PushStyleVar(ImNodesStyleVar idx, float val);
|
|
IMGUI_API void PushStyleVar(ImNodesStyleVar idx, const ImVec2 &val);
|
|
IMGUI_API void PopStyleVar(int count = 1);
|
|
|
|
IMGUI_API void PushStyleColor(ImNodesStyleCol idx, ImU32 col);
|
|
IMGUI_API void PushStyleColor(ImNodesStyleCol idx, const ImVec4& col);
|
|
IMGUI_API void PopStyleColor(int count);
|
|
|
|
}
|
|
|
|
}
|